(一)土坝灌浆类型 土坝灌浆类型,以动力分有机械灌浆与自流灌浆二种。机械灌浆主要是借机械所产生的压力把浆液压入坝体中;自流灌浆是借浆液本身的水柱压力将浆液压入坝体(即自流压水原理)。目前我省多数采用机械灌浆(包括电动与手摇)。对于自流灌浆只用在一些堤坝浅层(表面)裂缝, (A) earth dam grouting type Earth dam grouting type, with mechanical power grouting and gravity filling two. Mechanical grouting is mainly by the mechanical pressure generated by the slurry into the dam; gravity grouting is by slurry itself pressure of water column pressure slurry into the dam (that is, the principle of gravity flow water). At present, most of our province uses mechanical grouting (including electric and hand crank). For gravity grouting only used in shallow dikes (surface) cracks,